Kernel/include_std/string_view
2024-05-18 07:42:01 +03:00

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/*
This file is part of Fennix Kernel.
Fennix Kernel is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Kernel is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <string>
#include <ostream>
namespace std
{
typedef basic_string_view<char> string_view;
typedef basic_string_view<wchar_t> wstring_view;
typedef basic_string_view<char8_t> u8string_view;
typedef basic_string_view<char16_t> u16string_view;
typedef basic_string_view<char32_t> u32string_view;
template <class CharT, class Traits>
std::basic_ostream<CharT, Traits> &operator<<(std::basic_ostream<CharT, Traits> &os, std::basic_string_view<CharT, Traits> v)
{
os.write(v.data(), v.size());
return os;
}
constexpr std::string_view operator""sv(const char *str, std::size_t len) noexcept
{
return std::string_view{str, len};
}
constexpr std::u8string_view operator""sv(const char8_t *str, std::size_t len) noexcept
{
return std::u8string_view{str, len};
}
constexpr std::u16string_view operator""sv(const char16_t *str, std::size_t len) noexcept
{
return std::u16string_view{str, len};
}
constexpr std::u32string_view operator""sv(const char32_t *str, std::size_t len) noexcept
{
return std::u32string_view{str, len};
}
constexpr std::wstring_view operator""sv(const wchar_t *str, std::size_t len) noexcept
{
return std::wstring_view{str, len};
}
}